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Degradation mechanism and kinetic model for photocatalytic oxidation of PVC-ZnO composite film in presence of a sensitizing dye and UV radiation

White or plastic pollution has become a serious concern to the environmentalists for the last few years. Degradation of waste plastics in conventional incinerators leads to emission of carcinogenic dioxins to the atmosphere. In this work, an attempt has been made for the photocatalytic degradation...

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Main Authors: Sampa, Chakrabarti, Basab, Chaudhuri, Sekhar, Bhattacharjee, Paramita, Das, Binay Kanti, Dutta
Format: Citation Index Journal
Published: ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS 2008
Subjects:
TD Environmental technology. Sanitary engineering
Online Access:http://eprints.utp.edu.my/2352/1/SAMPLE_PAPER_PDF.pdf
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http://eprints.utp.edu.my/2352/
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spelling my.utp.eprints.23522017-01-19T08:26:13Z Degradation mechanism and kinetic model for photocatalytic oxidation of PVC-ZnO composite film in presence of a sensitizing dye and UV radiation Sampa, Chakrabarti Basab, Chaudhuri Sekhar, Bhattacharjee Paramita, Das Binay Kanti, Dutta TD Environmental technology. Sanitary engineering White or plastic pollution has become a serious concern to the environmentalists for the last few years. Degradation of waste plastics in conventional incinerators leads to emission of carcinogenic dioxins to the atmosphere. In this work, an attempt has been made for the photocatalytic degradation of polyvinyl chloride (PVC) using ZnO as semi-conductor catalyst in the form of PVC-ZnO composite film. The surface morphology as well as the FTIR spectroscopy of the irradiated film has been critically examined. The degradation was measured by weight loss data and was found to follow a pseudo-first order rate equation. The various parameters studied were loading of the semi-conductor, intensity of UV radiation and presence of Eosin Y as a sensitizing dye. It was observed that dye-sensitization enhanced degradation of PVC to a large extent. A possible mechanism has been suggested and the corresponding rate equation has been modeled for the dye-sensitized rate of degradation. The model has been validated by the experimental data. (C) 2007 Elsevier B.V. All rights reserved. ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS 2008-06-15 Citation Index Journal PeerReviewed application/pdf http://eprints.utp.edu.my/2352/1/SAMPLE_PAPER_PDF.pdf http://apps.isiknowledge.com/full_record.do?product=WOS&search_mode=GeneralSearch&qid=26&SID=X212JDdPAc7358p5C3D&page=1&doc=1 Sampa, Chakrabarti and Basab, Chaudhuri and Sekhar, Bhattacharjee and Paramita, Das and Binay Kanti, Dutta (2008) Degradation mechanism and kinetic model for photocatalytic oxidation of PVC-ZnO composite film in presence of a sensitizing dye and UV radiation. [Citation Index Journal] http://eprints.utp.edu.my/2352/
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Institutional Repository
url_provider http://eprints.utp.edu.my/
topic TD Environmental technology. Sanitary engineering
spellingShingle TD Environmental technology. Sanitary engineering
Sampa, Chakrabarti
Basab, Chaudhuri
Sekhar, Bhattacharjee
Paramita, Das
Binay Kanti, Dutta
Degradation mechanism and kinetic model for photocatalytic oxidation of PVC-ZnO composite film in presence of a sensitizing dye and UV radiation
description White or plastic pollution has become a serious concern to the environmentalists for the last few years. Degradation of waste plastics in conventional incinerators leads to emission of carcinogenic dioxins to the atmosphere. In this work, an attempt has been made for the photocatalytic degradation of polyvinyl chloride (PVC) using ZnO as semi-conductor catalyst in the form of PVC-ZnO composite film. The surface morphology as well as the FTIR spectroscopy of the irradiated film has been critically examined. The degradation was measured by weight loss data and was found to follow a pseudo-first order rate equation. The various parameters studied were loading of the semi-conductor, intensity of UV radiation and presence of Eosin Y as a sensitizing dye. It was observed that dye-sensitization enhanced degradation of PVC to a large extent. A possible mechanism has been suggested and the corresponding rate equation has been modeled for the dye-sensitized rate of degradation. The model has been validated by the experimental data. (C) 2007 Elsevier B.V. All rights reserved.
format Citation Index Journal
author Sampa, Chakrabarti
Basab, Chaudhuri
Sekhar, Bhattacharjee
Paramita, Das
Binay Kanti, Dutta
author_facet Sampa, Chakrabarti
Basab, Chaudhuri
Sekhar, Bhattacharjee
Paramita, Das
Binay Kanti, Dutta
author_sort Sampa, Chakrabarti
title Degradation mechanism and kinetic model for photocatalytic oxidation of PVC-ZnO composite film in presence of a sensitizing dye and UV radiation
title_short Degradation mechanism and kinetic model for photocatalytic oxidation of PVC-ZnO composite film in presence of a sensitizing dye and UV radiation
title_full Degradation mechanism and kinetic model for photocatalytic oxidation of PVC-ZnO composite film in presence of a sensitizing dye and UV radiation
title_fullStr Degradation mechanism and kinetic model for photocatalytic oxidation of PVC-ZnO composite film in presence of a sensitizing dye and UV radiation
title_full_unstemmed Degradation mechanism and kinetic model for photocatalytic oxidation of PVC-ZnO composite film in presence of a sensitizing dye and UV radiation
title_sort degradation mechanism and kinetic model for photocatalytic oxidation of pvc-zno composite film in presence of a sensitizing dye and uv radiation
publisher ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
publishDate 2008
url http://eprints.utp.edu.my/2352/1/SAMPLE_PAPER_PDF.pdf
http://apps.isiknowledge.com/full_record.do?product=WOS&search_mode=GeneralSearch&qid=26&SID=X212JDdPAc7358p5C3D&page=1&doc=1
http://eprints.utp.edu.my/2352/
_version_ 1738655186496258048
score 13.211869

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